package org.jash.day2;

/**
 * Created by Jash
 */
public class Demo {
    public static void main(String[] args) {
        int i1 = option((i, j) -> i * j);
        System.out.println("i1 = " + i1);
    }
    public static int option(Option opt) {
        return opt.progress(3, 4);
    }
}
